[Gasification] compression of dirty gas

[sabbadess at aol.com]

Philippe,

After a few hundred hours the compressor would look like the inside of a woodstove chimney.  It would be out of balance, shaking and there would be a toxic waste disposal problem.  The acids in the woodgas would also eat into the aluminum rotor.  Conceptually, a decent idea though.

Stephen
-----Original Message-----
From: praufast <praufast at free.fr>
To: Gasification <Gasification at bioenergylists.org>
Sent: Wed, Feb 2, 2011 11:34 am
Subject: [Gasification] compression of dirty gas


Hello,
hy not use a liquid ring compressor to get rid of the tars ? Agam Energy in 
srael has invented a quasy isothermal liquid ring compressor with a high 
fficiency, it can reach 14 bars :
http://www.agam-energy.com/
""Agam solved this obstacle by creating a revolutionary liquid ring compressor 
ith much higher mechanical efficiency. The performance of Agam's prototype 
ompressor matches the theoretical computer model prediction.
When cold water spray is introduced in fine drops at diameter of 50 micron to 
he compressed air zone, the compressed air temperature will be at 80 C rather 
han 450 C as in conventional adiabatic compressors. This result reduces the 
eed to invest a portion of the turbine energy to drive the compressor, since 
ess energy is required to compress cold air.
In typical Adiabatic compressors, the air is heated during the compression. 
gam's compressor is "quasi isothermal"- meaning it cools the air during the 
ompression and enables compression with smaller amount of energy.
here are two important consequences to the introduction of Agam's compressor:
 The compression of cold air saves about 35% of the shaft work.
- Efficiency of quasi isothermal compressor with mechanical efficiency of 80%. 
s equivalent to adiabatic compressor at an efficiency of 118%. Thus the power 
ransmitted to the quasi isothermal compressor is smaller and more power remains 
o export shaft work to wheels.""
Philippe.
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